How BIOS is written and load?

[User330]

Hi,

I'm preparing for my next project on intel x86 bios.

1.How BIOS will work?

2.Which language BIOS is written (both modern and legacy) and what are the procedure will do while writting and loading the BIOS?

3.What programming languages are used to create firmware ?

4.Where can i find some good guide/documentation about this arguments ?

Thanks in advance!

Ragav

[David_G_Intel]

Hello User330

Thank you for posting on the Intel️® communities. As your PC’s most important startup program, BIOS, or Basic Input/Output System, is the built-in core processor software responsible for booting up your system. Typically embedded into your computer as a motherboard chip, the BIOS functions as a catalyst for PC functionality action.

You can check this article from HP for more information:

• https://www.hp.com/us-en/shop/tech-takes/how-to-enter-bios-setup-windows-pcs

If you need any official documentation it's recommended that you contact the motherboard manufacturer. 

Regards, 

David G 

Intel Customer Support Technician